Seaton, K. A.; Batchelor, M. T.
The exact perturbation approach is used to derive the (seven) elementary
correlation lengths and related mass gaps of the two-dimensional dilute A₄
lattice model in regime 2⁻ from the Bethe ansatz solution. This model provides
a realisation of the integrable ϕ(1,2) perturbation of the c=7/10
conformal field theory, which is known to describe the off-critical thermal
behaviour of the tricritical Ising model. The E₇masses predicted from
purely elastic scattering theory follow in the...[Show more]
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